Results 1 to 7 of 7
  1. #1
    RC poster
    Join Date
    Jan 2013
    Posts
    19

    Pre Break In idea's?

    I picked up my new power plant for my Maxx. After the last fiasco with seals on a new 3.3 I decided to pull this one down and check seals. Pulled carb, right out of the box, found this...



    I have dug deeper, but havent found any other obvious issues. Besides swapping bearing over to ceramic, are there any other steps I should take to ensure this motor survives more than a few tanks?Ive watched all the videos, read all there is to read on break in...ive got that down, just curious if there are any tips or tricks you vet's have I dont know of.

  2. #2
    RC Qualifier
    Join Date
    Jun 2011
    Location
    Michigan
    Posts
    705
    All I can think of is to wrap the head and pre heat the block if you're in a cold area. What engine is that by the way, Picco red dot it looks like?

  3. #3
    RC Champion
    Join Date
    Mar 2012
    Location
    Dawson creek bc
    Posts
    1,108
    It wouldent hurt to grab some RTV high temp gasket sealer and deal the carb and backplate

  4. #4
    RC poster
    Join Date
    Jan 2013
    Posts
    19
    Im in central TX- was a beautiful 75 today. Will pre-heat on first start for sure, will monitor temps, probably wont need to wrap. Its a TRX motor, wish it was a Picco! It will be once I get this little nitro motor tuning stuff down.

    Kyle, I had new o-rings so I tossed a new one in there, and on the carb. Back plate looks good, not sure if I should seal or not. The last motor I had did leak from there right after break-in..... Is a leak at these points a normal occurrence on the trx motors? I would think the o-ring seals are more than sufficient, or they'd come up with a better method. Anyone know of a better o-ring to use?

  5. #5
    RC Qualifier
    Join Date
    Jun 2011
    Location
    Michigan
    Posts
    705
    Ahh ok, must just be the way the light hit it, made it look like a black cooling head on a red dot

  6. #6
    RC Competitor
    Join Date
    Oct 2012
    Posts
    90
    yes seal the back plate. i fought a leak for a long time on my 3.3 in my old maxx an it turned out to be that o-ring in carb. black RVT the carb, back plate, exhaust header, around the nut that tightens the carb down.
    revo 3.3 tmaxx 3.3 ofna hyper 7

  7. #7
    RC Turnbuckle Jr. Wildman4910's Avatar
    Join Date
    Jun 2009
    Location
    Cocoa Florida
    Posts
    3,920
    NEVER, NEVER put anything with an o~ring together dry.
    Always use a lube on the o~ring to keep from getting the o~ring pinched &/or rolled when putting the pieces together.

    The result in your pic is what happens when a dry o~ring meets a dry carb body upon assembly.

    SuperLube, Dielectric grease, AE Green Slime o~ring lube are all good greases to use on o~rings.
    Look out for the tree/crunch!

    LiPo? Naw NITRO!!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •